package com.pair.micro.common.mybatis.typehandler;
import cn.hutool.json.JSONUtil;
import org.apache.ibatis.type.BaseTypeHandler;
import org.apache.ibatis.type.JdbcType;
import org.apache.ibatis.type.MappedJdbcTypes;
import org.apache.ibatis.type.MappedTypes;

import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

/** 存储到数据库, 将LONG数组转换成字符串; 从数据库获取数据, 将字符串转为LONG数组.  没用*/
@MappedTypes({Long[].class})
@MappedJdbcTypes({JdbcType.VARCHAR})
public class ArrayLongTypeHandler extends BaseTypeHandler<Long[]> {

  private static Long[] l = new Long[] {};

  @Override
  public void setNonNullParameter(PreparedStatement ps, int i, Long[] parameter, JdbcType jdbcType)
      throws SQLException {
    ps.setString(i, JSONUtil.toJsonStr(parameter));
  }

  @Override
  public Long[] getNullableResult(ResultSet rs, String columnName) throws SQLException {
    return JSONUtil.parseArray(rs.getString(columnName)).toArray(l);
  }

  @Override
  public Long[] getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
    return JSONUtil.parseArray(rs.getString(columnIndex)).toArray(l);
  }

  @Override
  public Long[] getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
    return JSONUtil.parseArray(cs.getString(columnIndex)).toArray(l);
  }
}
